The question is multiple choice with 4 options (option-1, option-2, option-3, option-4)
Calculation- If option-1 or option-2 is selected in the question then code 0 should be given, if option-1 and option-2 are selected in the question then code 1 should be given, if option-1 and option-3 are selected in the question or option-2 and option-3 are selected or option-1 and option-2 and option-3 are selected then code 2 should be given, if option-1 and option-4 are selected in the question or option-2 and option-4 are selected or option-1 and option-2 and option-4 are selected then code 3 should be given.